From: Aaro Koskinen <[email protected]> Patch-mainline: 2.6.35 Discussions: http://www.mail-archive.com/[email protected]/msg26749.html
Enable TSC2005 touchscreen driver on the RX-51 board. Signed-off-by: Aaro Koskinen <[email protected]> --- arch/arm/configs/rx51_defconfig | 1 arch/arm/mach-omap2/board-rx51-peripherals.c | 46 +++++++++++++++++++++++++-- 2 files changed, 45 insertions(+), 2 deletions(-) Index: linux-2.6.33-master/arch/arm/configs/rx51_defconfig =================================================================== --- linux-2.6.33-master.orig/arch/arm/configs/rx51_defconfig 2010-04-19 17:28:20.000000000 +0300 +++ linux-2.6.33-master/arch/arm/configs/rx51_defconfig 2010-04-19 17:28:28.000000000 +0300 @@ -801,6 +801,7 @@ # CONFIG_TOUCHSCREEN_TOUCHWIN is not set # CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set # CONFIG_TOUCHSCREEN_TOUCHIT213 is not set +CONFIG_TOUCHSCREEN_TSC2005=m # CONFIG_TOUCHSCREEN_TSC2007 is not set CONFIG_INPUT_MISC=y # CONFIG_INPUT_ATI_REMOTE is not set Index: linux-2.6.33-master/arch/arm/mach-omap2/board-rx51-peripherals.c =================================================================== --- linux-2.6.33-master.orig/arch/arm/mach-omap2/board-rx51-peripherals.c 2010-04-19 17:28:20.000000000 +0300 +++ linux-2.6.33-master/arch/arm/mach-omap2/board-rx51-peripherals.c 2010-04-19 17:28:28.000000000 +0300 @@ -14,6 +14,7 @@ #include <linux/input.h> #include <linux/input/matrix_keypad.h> #include <linux/spi/spi.h> +#include <linux/spi/tsc2005.h> #include <linux/spi/wl12xx.h> #include <linux/i2c.h> #include <linux/i2c/twl.h> @@ -42,6 +43,9 @@ #define RX51_WL1251_POWER_GPIO 87 #define RX51_WL1251_IRQ_GPIO 42 +#define RX51_TSC2005_RESET_GPIO 104 +#define RX51_TSC2005_IRQ_GPIO 100 + /* list all spi devices here */ enum { RX51_SPI_WL1251, @@ -50,6 +54,7 @@ }; static struct wl12xx_platform_data wl1251_pdata; +static struct tsc2005_platform_data tsc2005_pdata; static struct omap2_mcspi_device_config wl1251_mcspi_config = { .turbo_mode = 0, @@ -87,10 +92,10 @@ .modalias = "tsc2005", .bus_num = 1, .chip_select = 0, - /* .irq = OMAP_GPIO_IRQ(RX51_TSC2005_IRQ_GPIO),*/ + .irq = OMAP_GPIO_IRQ(RX51_TSC2005_IRQ_GPIO), .max_speed_hz = 6000000, .controller_data = &tsc2005_mcspi_config, - /* .platform_data = &tsc2005_config,*/ + .platform_data = &tsc2005_pdata, }, }; @@ -708,6 +713,42 @@ #endif +static struct tsc2005_platform_data tsc2005_pdata = { + .ts_pressure_max = 2048, + .ts_pressure_fudge = 2, + .ts_x_max = 4096, + .ts_x_fudge = 4, + .ts_y_max = 4096, + .ts_y_fudge = 7, + .ts_x_plate_ohm = 280, + .esd_timeout_ms = 8000, +}; + +static void rx51_tsc2005_set_reset(bool enable) +{ + gpio_set_value(RX51_TSC2005_RESET_GPIO, enable); +} + +static void __init rx51_init_tsc2005(void) +{ + int r; + + r = gpio_request(RX51_TSC2005_IRQ_GPIO, "tsc2005 IRQ"); + if (r >= 0) + gpio_direction_input(RX51_TSC2005_IRQ_GPIO); + else + printk(KERN_ERR "unable to get %s GPIO\n", "tsc2005 IRQ"); + + r = gpio_request(RX51_TSC2005_RESET_GPIO, "tsc2005 reset"); + if (r >= 0) { + gpio_direction_output(RX51_TSC2005_RESET_GPIO, 1); + tsc2005_pdata.set_reset = rx51_tsc2005_set_reset; + } else { + printk(KERN_ERR "unable to get %s GPIO\n", "tsc2005 reset"); + tsc2005_pdata.esd_timeout_ms = 0; + } +} + #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) static struct omap_smc91x_platform_data board_smc91x_data = { @@ -792,6 +833,7 @@ board_smc91x_init(); rx51_add_gpio_keys(); rx51_init_wl1251(); + rx51_init_tsc2005(); spi_register_board_info(rx51_peripherals_spi_board_info, ARRAY_SIZE(rx51_peripherals_spi_board_info)); } _______________________________________________ MeeGo-dev mailing list [email protected] http://lists.meego.com/listinfo/meego-dev
